Reynold Xin created SPARK-6624:
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Summary: Convert filters into CNF for data sources
Key: SPARK-6624
URL: https://issues.apache.org/jira/browse/SPARK-6624
Project: Spark
Issue Type: Sub-task
Reporter: Reynold Xin
We should turn filters into conjunctive normal form (CNF) before we pass them
to data sources. Otherwise, filters are not very useful if there is a single
filter with a bunch of ORs.
Note that we already try to do some of these in BooleanSimplification, but I
think we should just formalize it to use CNF.
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